Boron Nitride (BN) Micron Powder, Purity: ≥99%, Size: 30–40 µm, Hexagonal

Description

Boron Nitride (BN) Micron Powder, Purity: ≥99%, Size: 30–40 µm, Hexagonal

Boron Nitride (BN) Micron Powder is a high-purity ceramic material with a hexagonal crystal structure (h-BN), often referred to as white graphite due to its layered structure and lubricating properties. With a particle size range of 30–40 µm and a purity of ≥99%, this powder is well-suited for advanced industrial applications requiring thermal conductivity, electrical insulation, and chemical stability.

Boron nitride offers a unique combination of high thermal stability (up to 2800 °C in inert atmospheres), oxidation resistance, and low dielectric constant, making it an essential additive in ceramics, refractories, coatings, and electronic devices.

Technical Properties

• Purity: ≥99%

• Average Particle Size (APS): 30–40 µm

• Crystal Structure: Hexagonal (h-BN)

• Color: White / Grayish white

• Density (true): ~2.29 g/cm³

• Hardness: ~2 (Mohs scale)

• Thermal Conductivity: High (up to 400 W/m·K in-plane)

• Electrical Properties: Excellent insulator (high dielectric strength)

• Thermal Expansion: Very low (excellent dimensional stability)

Key Features

• Excellent thermal conductivity and heat dissipation

• Superior electrical insulation properties

• High chemical inertness and oxidation resistance

• Low coefficient of friction, acting as a solid lubricant

• Stable at high temperatures under inert or vacuum conditions

Applications

Electronics & Energy

• Electrical insulators in high-power devices

• Thermally conductive fillers in polymers, resins, and adhesives

• Heat sinks and substrates for semiconductors

• Components in solid-state devices and plasma equipment

Industrial & Engineering

• Additives in ceramics and refractories to improve thermal resistance

• Lubricants for high-temperature environments

• Crucibles and containers for molten metals and alloys

• Coatings for molds, dies, and components requiring anti-stick or anti-oxidation properties

Aerospace & Defense

• Thermal protection systems and aerospace heat shields

• Additives for advanced composites used in extreme conditions